CP43维护手册.pdf.pdf - 第40页
Chapter 4 Functions of the Parts 4.3 Parts Supply System • Feeder This feeds the tape on which parts are mounted for pick-up at station 1. T apes with a width of 8, 12, 16, 24 and 32 mm can be used. • Device T able Locat…
Chapter 4 Functions of the Parts
Station 6 :Fine theta (Fθ) adjustment is carried out. The results of
vision processing are sent to the the servomotor, and
final adjustments are made to the angle of the part.
Station 7 :The machine places the part on the board. If the vision
processing declares that the part is no good (NG), the
part is not placed.
Station 8 : No function.
Station 9 :A sensor checks whether or not the nozzle has returned
to the original position after placement. A check of the
position of nozzle holder A is also done in order to
process production information.
Station 10 : Parts declared defective by vision processing are
rejected here. Also, because of upcoming nozzle
changeover at station 11, the locations of the S, M and L
nozzles are confirmed.
Station 11 : S, M and L nozzles are changed.
Station 12 :After nozzles are changed, their locations are checked at
this station. The nozzle vacuum turns off as the spool is
pushed in.
• Vision Processing
In addition to the part recognition described at station 4, the vision
processing system includes a CCD camera, light, CCD camera
mounting bracket and related parts.
The camera reads the fiducial marks on the board to enable
corrections to be made in the position of the board. This CCD camera
unit is the optical correction unit.
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Chapter 4 Functions of the Parts
4.3 Parts Supply System
• Feeder
This feeds the tape on which parts are mounted for pick-up at station
1. Tapes with a width of 8, 12, 16, 24 and 32 mm can be used.
• Device Table
Located behind the machine, the device table consists of a left and
right table, servomotors, a ball screw and related parts. The feeders
on the table move as specified by the servomotors by the placing
program.
• Tape Cutter
Behind the placing head at station 1 a vertical blade cuts against a
ridge to cut any tape which has extended past the end of the feeder.
The cut tape gets sucked through a vacuum hose into the waste tape
collection box.
4.4 Board Feeding System
• XY Table
The XY table consists of the X, Y and Z axis servomotors, the X and Y
slides, the back-up plate and related items. When placing parts, the
table slides into the position specified by the placing program. The
table can move up or down, depending on the height of the part in
use.
• In Conveyor
The in conveyor consists of guide rails, a flat T type conveyor belt, a
conveyor motor and related items. The board is received from the
previous production stage and fed onto the XY table.
• Out Conveyor
The out conveyor consists of guide rails, a flat T type conveyor belt, a
conveyor motor and related items. The table receives boards which
have had parts placed on them and feeds them out of the machine to
the next production stage.
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Chapter 4 Functions of the Parts
4.5 Electrical System
The electrical system consists of a control box and operation panels.
4.5.1 Operation Panels
There are three operation panels on the machine. The controls
needed to operate the machine are installed on each of these.
Front operation panel: Located on the front of the machine, this
includes, apart from the controls necessary
to operate the machine, an operation
monitor and a monitor for the vision
processing at station 4.
Rear operation panel: Located on the rear of the machine, this
includes, apart from the controls necessary
to operate the machine, an operation
monitor.
Rear fence operation panel: Located on the central rear fence of
the machine, this includes a
front/rear panel operation key, a
start button, a cycle stop button, a
reset button, and an emergency stop
button.
4.5.2 Control Box
The two control boxes are located on the lower front sides of the
machine next to the servo boxes.
4.6 Air Supply System
This controls the flow and pressure of air (and/or vacuum) from the inlet
to where it is needed.
4.7 Machine Body
The machine body consists of a base, frame and covers.
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